Science

The Soul in the Stone

Inside Illinois: Mineral Resources

Pennsylvanian invertebrates of the Mazon Creek Area, Illinois: Eurypterida

Astronomical Curiosities: Facts and Fallacies

The Forms of Water in Clouds and Rivers, Ice and Glaciers

A Brief Account of Microscopical Observations Made

The Study of Elementary Electricity and Magnetism by Experiment

How to Do Chemical Tricks

On the Construction of a Silvered Glass Telescope

Animal Parasites and Messmates

Darwinism and Race Progress

Insect Adventures

The Fearful Sea

Radiophobia

Rewinding History

The Shadowed Sun

Solar Eclipse Uncovered

Experiments and Observations on the Following Subjects

Mars and Its Mystery

Who's Who In The Moon